Doctor: Angiotensinogen is a protein in human blood. Typically, the higher a person's angiotensinogen levels are, the...

Tyler808 on April 12, 2022

how is this not A?

That's clearly what's happening right?

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Emil-Kunkin on April 19, 2022

Hi Tyler808,

I don't think there are any necessary conditions in the argument. Until the last sentence, everything is correlated- we are never told thatX must be the case, or any other sufficient or necessary language. Even when we see the last sentence, we are only told that the disease is A cause of high blood pressure, rather than THE cause. If something is only one among many causes of a phenomenon, that thing is not a necessary condition. The flaw here is that the author confuses the direction of causality, or indeed that one can draw causality from a correlation. This fits much better with C.